Looking for OWB advice

Discussion in 'OWB's and Gasification Boilers' started by Farmchuck, Apr 7, 2021 at 5:58 PM.

  1. Farmchuck

    Farmchuck

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    Hello all.our family is debating getting a new outdoor wood burner to replace our Central Boiler 6048. Goal is to cut wood consumption considerably. Heating two old farm houses with some updated insulating. Anyone with opinions on any of these models or experience
    with any of these brand’s would be appreciated. I really have no complaints about our current CB outdoor stove it has served us well since 2006. Thankful for any input.:)
     
  2. Farmchuck

    Farmchuck

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    The models we’re considering are:
    Heat master 7000
    Crown Royal 7300E
    Central Boiler 960HDX
     
  3. stuckinthemuck

    stuckinthemuck

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    Is the 6048 at the end of its life? The one thing that doesn’t make sense to me is what I perceive to be a huge amount of heat loss from a boiler that is installed outside of the building envelope of a heated structure.. i would think that simply replacing one outdoor boiler with another wouldn’t save a ton of wood if the new one was still outside. Is it possible to enclose your current boiler in a well insulated structure that you can also use as a workshop, man cave or just heated storage? Asking of course as I don’t know what your current setup looks like...
     
  4. brenndatomu

    brenndatomu

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    They are pretty well insulated...there is a little heat loss though...the big difference is in the technology used on 2020+ OWB's...the old school ones were just a fire in a tube inside a tank of water...current OWB's are downdraft gassifiers, and will save a ton of wood over the old design
     
  5. stuckinthemuck

    stuckinthemuck

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    Hmmm. Didn’t know that. So are they able to idle down to meet demand like the older ones? or does one have to arrange for hot water storage to accommodate a continuous burn? The “idle down” function of the old ones seemed to be a “feature” that encouraged burning of wet wood to lengthen a burn which then resulted in a higher overall volume of wood burned..
     
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  6. brenndatomu

    brenndatomu

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    The ones I am familiar with can idle down...and do it cleanly, because the exhaust is being monitored by an O2 sensor, and the primary and secondary air is separately micro controlled via stepper motors, so no more lingering cloud of smoke while they idle...and no HUGE cloud of smoke when the damper opens back up upon call for heat.
     
  7. Farmchuck

    Farmchuck

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    No the 6048 is working fine, no issues whatsoever. It’s my 58 year old back that seems to be progressively giving me more issues each year. I’m just looking for something that will cut my wood consumption. Also this year is appealing because of the 26% tax credit incentive. Our stove actually is under cover in a wood shed but it really doesn’t radiate any heat. I think it is insulated quite well.
     
  8. jrider

    jrider

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    I have had a gasification boiler for 10 years now and absolutely love it. It’s the only owb ive ever owned so I have nothing to compare it to. I do know it burns less wood than people would expect and is insulated pretty well. Snow will sit on top of it for the better part of the day after an overnight snowfall. The only major area of heat loss is the loading door. Mine is from Portage and Main and has virtually been bullet proof. If you’re looking to cut down on consumption, I think I would first look at improving insulation in the houses.
     
  9. lukem

    lukem

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    I have a couple downdraft gasifiers in the family. My Heatmaster and my FIL's Crown Royal. Both have been great, so I don't think you can do wrong with either brand.

    The next generation of boilers with active exhaust monitoring look interesting.
     
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  10. Farmchuck

    Farmchuck

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    Which heat master & crown royal do you folks have?
     
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  11. lukem

    lukem

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    I have a GS200. Not sure what their model is, but is about 8? years old and one of the first gasifier model they made.
     
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  12. JCMC

    JCMC

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    How much water does your CB6048 hold?
    When I spoke to the dealer for CR I was considering the 7200E as I only heat one house He recommended the 7300E. to replace my old CB CL-40.
    I think with two houses and the milk house you would consider the 7400E.
     
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  13. Farmchuck

    Farmchuck

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    390 gallons
     
  14. Farmchuck

    Farmchuck

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    What does your CL-40 hold in gallons?
     
  15. Farmchuck

    Farmchuck

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    I haven’t read anything about active exhaust monitoring. I wonder how far in the future that is?
     
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  16. brenndatomu

    brenndatomu

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    That's what all the 2020 + EPA approved gassifiers are running...O2 sensor...slick! :yes:
     
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  17. JCMC

    JCMC

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    It holds 400 gal.
     
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